The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A292311 Expansion of Product_{k>=1} 1/(1 + k^k*x^k). 2
 1, -1, -3, -24, -216, -2801, -42166, -762397, -15685040, -366477168, -9523974486, -273453483050, -8583651341879, -292700900034984, -10770969729108326, -425541512224476567, -17964544188354355022, -807097409926675847400 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Seiichi Manyama, Table of n, a(n) for n = 0..386 FORMULA Convolution inverse of A265949. a(n) ~ -n^n * (1 - exp(-1)/n - (exp(-1)/2 + 3*exp(-2))/n^2). - Vaclav Kotesovec, Sep 14 2017 PROG (PARI) {a(n) = polcoeff(1/prod(k=1, n, 1+k^k*x^k+x*O(x^n)), n)} CROSSREFS Cf. A023882, A265949. Sequence in context: A232692 A000279 A370443 * A370986 A279973 A274737 Adjacent sequences: A292308 A292309 A292310 * A292312 A292313 A292314 KEYWORD sign AUTHOR Seiichi Manyama, Sep 14 2017 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 17 23:36 EDT 2024. Contains 375991 sequences. (Running on oeis4.)